Plow.



No. 837,494. 4 PATENTED DEC. 4, 1906.

r 'H. OLDENDORPH.

PLOW.

APPLICATION FILED NOV- 6. 1905.

THE NORRIS Pzrs'Rs 5a., WISHINGYON. n, c,

TED STATES PATENT OFFICE.

PLOW.

Specification of Letters Patent.

Patented Dec. 4, 1906.

Ap lication fil d November 6, 1905- Serial No. 286,128.

To all whom it may concern.-

Be it known that I, HENRY OLDENDORPH, a citizen of the United States, and a resident of Belleville, Illinois, have invented certain new and useful Improvements in Plows, of which the following is a specification.

This invention relates to improvements in plows; and it consists of the novel features hereinafter described and claimed.

The object of my invention is to construct a plow with an adjustable self-sharpening point and so arranged as to not interfere with the movement of the ground out and to be turned.

A further object of my invention is to provide a point that may be readily and easily adjusted, removed, and reversed with perfeet case.

In the drawings, Figure 1 is a perspective view of my invention, showing my improved point in position. Fig. 2 is a bottom plan view of the same. Fig. 3 is a vertical sectional view taken through the center of the point and mechanism supporting the same. Fig. 4 is a detail vertical cross-sectional view taken on the line 4 4 of Fig. 1. Fig. 5 is a detail perspective view of the point made use of in carrying out my invention. Fig. 6 is a detail plan view of the share-blade. Fig. 7 is a detail perspective view of the point-key blade. Fig. 8 is a detail perspective view of the cutter-blade carried by the point. Fig. 9 is a perspective view of the frog made use of in carrying out my invention. Fig. 10 is a perspective view of the frog in reverse position. Fig. 11 is a horizontal sectional view taken on the line 1 1 of Fig. 2.

Referring to the device in detail, 11 indicates the moldboard.

12 indicates the share-blade; 13, the landside; 14, the vertical support by which the device is supported from the plow-beam; 15, a suitable bracket for connecting the moldboard and share-blade to the landside, and 16 a suitable bracket connecting the moldboard to the vertical support 14. The shareblade 12 is tapered in form, as shown in Fig. 4, and upon its surface is placed a cutterplate 17, which is arranged to be adjusted to bring its connecting edge 18 in the desired relation to the cutting-point. The cutterplate 17, being of thin sheet-steel, is provided with bolt-holes 19, the metal being bent inwardly to form the countersunk recesses for the support of the plow-bolt head 20, which bolts are of the ordinary construction. These bolts are passed through the slots 21, formed in the share-blade, which will permit. the proper adjustment of the cutter-plate 17. The share-blade 12 is also provided at its rear end with a beveled edge 22, over which is adapted to be placed a lockplate 23, formed. at the rear end and to one side of the cutter-plate, and is provided with a dovetail surface 24, thus locking the plate in position against the share-blade in conjunction with the use of the plow-bolts 20. The lock-plate 23 is held in position by means of the bolt 20 and dovetail lug 26. The share-blade is also provided with a dovetail recess 25, into which is seated a dovetail projecting lug 26, formed on the rear of the cutter-plate.

The landside and share-blade are joined together at the point by a frog 27, which consists of a vertical portion 28 and an angular portion 29, the angular portion contacting with the shareblade and moldboard and rigidly riveted thereto, while the vertical portion is riveted to the landside, which is seated in the recesses 30 and 31, formed in said frog. (See Figs. 2 and 9.)

The under surface of the frog is provided with a crossbar 32 and a projecting point 33, which forms an angular recess 34. The frog has a horizontal portion 35, to the rear end of which is formed a downwardly-projecting shoulder 36, having a threaded bore 37, into which a bolt 38 is inserted, and projecting from the shoulder 36 and located at the side of the bolt is a pair of lugs 39, which support the tapering point-bar 40 and prevent lateral motion. The horizontal portion of the frog is also provided with a plurality of elongated recesses 41, into which is inserted the point of some instrument or wrench, which is ad mitted therein through the elongated slot 42, formed in the point-bar to force said bar be tween the head of the bolt 38 and the shoulder 36.

The point-bar 40 has its rear end bifurcated to pass around the bolt-shank, and its front end, which forms the point of the plow, has a wedge-shaped portion 43, in which is formed a tapering dovetail slot 44. On the upper surface of the point-bar is provided a projecting lug 45, which is to engage into slots 46, formed in the cutter-blade 47. The slots 46 in the cutter-blade 47 will permit the adjustment of said blade and at the same time hold the same in rigid position. This blade is inserted through the tapering dovetail slot 44 formed in the point and lies di-- point 49, which comes in contact with the rear portion of the cutter-blade, acting asa wedge for the cutter-blade and a stiifener for the key 48, and at the same time coming in contact with the inclined surface 48 of the frog. Integral with the key 48 is a tapering portion 50, which passes upwardly over the cutter-plate and a portion of the moldboard to protect the edge of the plow. The upper portion of the frog is provided with a tapering projection 51, formin the recessed portion 52, on which is suitably riveted the share-blade 12, extending therefrom on the angle indicated by the dotted lines in Fig. 10. The tapering projection 51 also forms a passage-way 53, through which the cutter-blade and point-bar are. inserted and supported upon the cross-bar 32 formed beneath.

In order to prevent the wedge-shaped por-v tion 43 from Wearing by the continual friction of the earth, I provide a hardened-steel blade 54, secured to its under side, which has its edge sufficiently sharp to cut the ground as it is passed therethrough.

The cutter-blade 47, the point-bar 40 and its wedge-shaped portion 43, the taperingpoint key-blade 48, and the tapering portion 50 are all connected together and can simultaneously be removed from the passage-way 53 and from the bolt 38 when so desired.

Having thus described my invention, what I claim as new, and desire to have secured to me by the grant of Letters Patent, is

1. A plow comprising a moldboard, a landside, a share-blade, an adjustable cutterplate mounted upon the share-blade, a recessed frog located between the share-blade and the landside and securing the same together, a point removably attached to the frog,-and a bolt for retaining the same in position, substantially as specified.

2. A plow of the class described, comprising a point provided with a point-bar and having a tapering dovetail slot, a cutterblade located upon the point-bar and Within the dovetail slot, a key-blade located upon the cutter-blade and inserted within the dovetail slot, in combination with a moldboard, landside, and share-blade, a frog located between the'landside and sharerblade, and provided with a passage through which are inserted the point-bar and cutter-blade, and means for retaining the same in locked position, substantially as specified.

3. A plow of the class described, comprising a point, a point-bar formed integral with said point, and having its end bifurcated, and having in its surface a slot, at lug formed on the point-bar, a tapering dovetail groove formed in the point, a cutter-blade located within the dovetail groove, in combination within said groove and provided with a plurality of slots to engage the lug on the point-bar, a key-blade provided with a wedge secured with a moldboard, landside, share-blade, a

frog located at the meeting-point of the moldboard, landside and share blade, and provided with a passage-Way, through which the pointbar and cutter-blade are inserted, the under surface of the frog provided with recesses to correspond with the slot in the point-bar for the insertion of a tool for adjusting the same, a screw carried by the frog for retaining the point-bar and point in position, substantially as specified. Y

4. A plow of the class described comprising an adjustable cutter-blade in combination with a moldboard, landside and share-blade, the share-bladeprovided with dovetail slots for the insertion of dovetail lu s formed on the cutter-blade, a frog, a shoul er formed on the lower surface of the frog, a pair of lugs located on two sides thereof, a point composed of three parts, one acting as a cutterblade, the other to support the cutterblade and lock the same agamst the shoulder of the frog, the other providing a surface over which the ground is freely passed, and tapering against the moldboard, and a locking device carried by the frog for retainin the point in position, substantlally as speci ed.

In testimony whereof I have signed my name to thls specification in presence of two subscribing witnesses.

HENRY OLDENDORPH.

Witnesses:

ALFRED A. EIOKS, WALTER C. STEIN. 

